Fireproof door.



PATENTED, JAN. 14, 1908.

J. 0. EMRICH. FIREPROO'P DOOR.

' APPLICATION FILED APE.22.1907.

2 SHEETS-.SHEET 1 mvEni'roR VIIIII/I/IIII VII/IIIIII/IIIIIII WITNESSESNo. 876,787. 5 PATENTED JAN. 14, 1908.

J. 0; EMRIOHJ PIREPROOF DOOR.

APPLICATION FILED APR. 22.1907.

2 SHEETS-SHEET Z.

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JOHN OSCAR EMR'IOH, OF ALLEGHENY, PENNSYLVANIA.

FmEraooF noon:

To all whom it may concern:

Be it knownthat 1, Joan OSCAR EMRIOH, 'a citizenof the. United States,resident of Allegheny, in the county of Alleghenyand State ofPennsylvania, have invented a new and useful Improvement in FireproofDoors; and I do hereby declare the following to be a full, clear, andexact description thereof.

My invention relates to the construction of a fireproof door, and hasfor its object the construction of such a door of sheet steel, wireglass, and other fire retarding materials arranged, combined, andsecuredtogether in a novel manner, for the purpose of forming a most formidablefire-door.

A further object of my invention is to effect such a construction offire-door at an economical cost on account of the simplicity of themanner of forming the steel parts and of combining the same.

Referring to the drawings, Figure 1 is a view in elevation of a dodrembodying my improved construction. Fig. 2 is a horizon tal section onlines 22 of Fig. 1. Fig. 3 is a broken elevation on an enlarged scale,showing the interi: arrangement. Fig. 4 is a horizontal section on lines44 of Fig. 3. Fig. 5 is\a section on lines 5-5 of Fig. 3. Fig. 6 is aplan or top view on lines 6-6 of Fig. 1 of especially devised lockbolster. Fig. 7 is a viewin perspective, showingthe construction of therails of the doer'at the point of abutment or connection with thestiles. Fig. 8,. is a perspective of the end of the stile showing itsconstruction and adaptability for engagement with the rail. Fig. 9 isapv'iew in perspective of a clam adapted to bind together the rails andsti es. Fig. 1.0 shows in perspective a pin fitted. with keys andset-screws.

Like references in the specification refer to like parts in thedrawings, in which A represeizrts a door frame formed of the stiles oand rails a/ made of sheet steel, and each having a marginal angularformation a lengthwise thereof, the adjoining parts of said stiles andrails being turned inwardly to form the obtuse angles 1) (Figs. 7 and 8)which are adapted to be engaged. by the clamp b (Fig. 9) being insertedthrough the opening I) in the rail a and open ends 0, the angles 1) andclamps I) being thoroughly clamped together (Figs. 3 and 4) to form theframe, after which the partd is forced down closing the corner b of therail 0. after which the Specification of Letters Patent. Applicationfiled April 22! 1907. Serial No. 869.523-

Patented Jan. 1 1, 1908.

part (Z is forced over to close the open end of the stile a, these partsbeing held in position by machine screws 11 engaging the nut c which issecured to the underside of the part (1, as'shown in Fig. 3, themarginal angle forming a panel around the plane between the stiles andrails. Within the space between the walls of the frame A are sheet-steelplates or panels e, one being secured to each side thereof preferablycovering a little more than the plane between the stiles of the frame,except at the point opposite the hinges c where said plates are extendedforming arms which are flanged and folded and bear against the narrow orhinge bearing stile of the door, as at f, making a strong bearing orsupport for the hinges e and also at a oint in the opposite stile wherethe pane s c are also extended to form the support or bolster 9 (Fig. 6)which forms a particularly advantageous means for carrying the lock ofthe door.

Behind each steel anel or plate c is a sheet of asbestos g eac 1 ofwhich is backed by a sheet of wire glass h which have an inter the airspace At vening air space 41 between them,

being maintained by asbestos pads 1 b. several points preferably in andaround marginal angle a), perforations (not she n) are made, whichextend through the int-e,- riorly arranged sheet-steel anels a",asbestos sheets g and wire glass h, t rough which perforations the pinsj areinserted so that th ends thereof extend sufliciently on each sid ofthe frame to allow the tapered keys 7" to be inserted in the key-ways jwhere they are held in fixed position by the set-screws Z. (Figs. 3 and10.) Fitting neatly over and around the marginal angle a on each side ofthe frame A and covering the ends of the pins 9" is a molding 7c whichis held securely in positibn by the machine screws (Z engaging the taped holes at of the pins j, the heads of all mac iine screws beingafterwards ground down flush with the face of the molding k. The moldingis then arranged in position and secured to the ends of the pins j bymachine ing through the door, and meanson' the ends of the pins forsupporting the sides of the stiles and rails and the interiorly arrangedparts compactly together.

- 2.- In a fire-door having hollow stiles and rails, a clamp adapted toengage said stiles and rails, sheets of fire retardin material arrangedwithin the stiles and ra' s and panels, a lock carrier formed inside astile, pins extendi through the door, and means on the ends 0 the pinsfor supporting the sides of the stiles and rails, and the interiorlyarranged-parts compactly together.

3. In a fire-door haying hollow stiles and rails, interiorly re-inforcedhinge bearings, a lock carrier or support carrying a lock.inde pendentlyof the stile, pins extending through the rails and stiles and havingmeans eongected thereto forsupporting the sides of the oor.

4. In a fire door, the combination of hol-. p

low steel stiles and rails, sheets of steel, wireglass, and asbestosarranged interveningly between the walls of-the stiles and rails andpanels, pins extending through the structure,

and means on the end of the pins adapted to support the sides of thestiles and rails and the interior parts compactly together.

-5. In a metallic door, hollow stiles and rails having interiorlyre-inforced hinge bearings, a lock carrier. or support carrying a lockindependently of the stile, pins extending through the rails and stiles,and means connected to the pins for supporting the sides of the door,and means for 'to said pins.

securing a molding I 6. In a metallic door, pins adapted to be insertedthrough the rails and stiles of the door and means engaging the ends ofthe pins to support the outer sides of the door, and means communicatingwith the pins for supporting a molding or finish at each end thereof.

7. In a fire door, suitable hollow stiles and rails having interiorlyreinforced hinge bearings, a lock carrier or support carrying a lockindependently of the stile, sheets of fire retarding material arrangedbetween the walls ofthe stiles and rails, and the anels of the door, andpins adapted to hold I he parts compactly together.

8. In a fire door, suitable hollow stiles and rails having interiorlyreinforcml. hinge bearings, a lock carrier or support carrying a lockindependently of the stile, sheets of fire retarding material arrangedbetween the walls of the stiles ani l rails and the panels of the door,means for holding the parts compactly together and for securing amolding or finish f thereto.

9. In a fire door, suitable hollow stiles and rails having interiorlyreinforced hinge bearings, a lock carrier or support carrying a lockindependently of the stile, sheets'of" fire retarding material arrangedbetween the walls of the stiles, rails and panels of said door, pinsinserted through the structure and hav ing means on the end thereof forholdir g the arts compactly togethen,

10. In a fire door, suitable hollow stiles and rails havinginteriorly-reinforced hinge bearings, a lock carrier or isupport, sheetsof fire retarding material arranged between the walls of the stiles,rails, and panels of said door, slotted pins insertedthrough thestructure, wedges adapted to engage the ends of the pins, and means forholding the wedges in position in the slots. 4

In testimony whereof, I the said'J. OSCAR EMmoiI have hereunto set myhand;

J. OSCAR EMRICH.

Witnesses:

E. ALBERT POWER,

J. L. TREFALLER, Jr.:

